将食品工业废弃物利用为环境应用的高性能生物炭
Małgorzata Sieradzka1, Wojciech Jerzak1, Agata Mlonka-Mędrala1
1AGH University of Krakow, Al. Mickiewicza 30, 30-059, Krakow, Poland.
Scientific reports
|July 18, 2025
概括
食品行业的废物通过缓慢的热解转化为生物炭. 活性化生物炭有效地从水中去除污染物,并被证明是无毒的,支持循环经济和可持续发展目标.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 来自食品工业的有机废物带来了处置挑战.
- 价值化这些废物支持循环经济原则,并减少对环境的影响.
- 纤维素残留物是热化学转换的丰富原料.
研究的目的:
- 探索食品工业残留物的缓慢热解 (油菜蛋糕,玉米,核桃).
- 研究由此产生的生物炭的特性和污染物去除能力.
- 评估工程生物炭对环境安全和可持续性的一致性.
主要方法:
- 在600°C的温度下缓慢的烧解了油菜蛋糕,玉米和核桃.
- 生物炭的物理 (在850°C蒸汽激活) 和化学 (H3PO4,ZnCl2) 激活.
- 测试生物炭在从水溶液中去除和Pb2+的有效性.
- 使用Lemna小生物测试评估急性毒性.
主要成果:
- 生物炭产量在22-26%之间,碳含量高 (>80%).
- 激活显著增加了表面积 (高达550 m2/g).
- 生物炭表现出高污染物去除效率 (100% Pb2+,82% ) 和没有急性毒性.
结论:
- 来自食品垃圾的工程生物碳是有效的环境修复工具.
- 这个价值化过程与多个联合国可持续发展目标 (SDGs) 保持一致.
- 该研究强调生物炭是环境保护和资源回收的多用途材料.
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